So it's been a while since I've last posted but that's not to say I haven't been keeping myself busy. I've put together my pre-viz and now have a clear indication of what is left to do. I need to clean up a lot of the camera animation (it goes a bit crazy underneath the skin) and refine some textures etc. Then I'll move on to lighting and rendering, then compositing all together in after effects.
I have inserted a test render as part of my pre-viz to indicate the style i'm going for, but as stated there is a lot of refinements to do:
Here are some screenshot renders of some of the sequences: